package com.gdit.comm.security;


import com.gdit.comm.result.Result;
import com.gdit.comm.result.ResultCode;
import com.gdit.util.JacksonUtil;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

/**
 * @author fgba
 */
@Component
public class LoginFailureHandler implements AuthenticationFailureHandler {
    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) throws IOException {
        response.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream = response.getOutputStream();
        Result<Object> result = Result.error(ResultCode.USERNAME_OR_PASSWORD_ERROR.getCode(), ResultCode.USERNAME_OR_PASSWORD_ERROR.getMsg(), null);

        outputStream.write(JacksonUtil.toJson(result).getBytes(StandardCharsets.UTF_8));
        outputStream.flush();
        outputStream.close();
    }
}
